Water Molecule Unit Part 3.

Water Molecule Unit Part 3

Activity or Demonstration. Surface Tension.
Caution! Pepper is dangerous, wear eye protection. Sprinkle pepper into water. Dab detergent on toothpick and touch.

Try to float a paperclip on water. Record your method?
Activity! Try to float a paperclip on water. Record your method? How is this possible? What will happen if you touch the surface with detergent? Copyright © 2010 Ryan P. Murphy

Surface tension: Water molecules tend to stick to themselves instead of the air.
This creates a small film over the water. Copyright © 2010 Ryan P. Murphy

Surface tension: Water molecules tend to stick to themselves instead of the air.
This creates a small film over the water. Cohesion Copyright © 2010 Ryan P. Murphy

Water doesn’t cling to Oxygen and Nitrogen in Air
Water Molecules sticking to themselves because the are polar

Water doesn’t cling to Oxygen and Nitrogen in Air
Cohesion Water Molecules sticking to themselves because the are polar

The Water strider takes advantage of surface tension.

The Water strider takes advantage of surface tension.
It’s built to walk on water and feeds on insects that aren’t.

Video Link! The World of the Water Strider

The Jesus Lizard: (Basiliscus Plumifrons)
Has long toes and runs in a way that it can travel across the water to avoid predators. Video! (Optional)

Surface tension is what allows snowmobilers and dirt bikers to perform a stunt called skimming.
It’s illegal in many states and unsafe. Copyright © 2010 Ryan P. Murphy

Skimboarding is a perfectly safe and fun way to experience the thrills of surface tension.
Copyright © 2010 Ryan P. Murphy

Water skiing is another example of riding along the surface tension.

Water skiing is another example of riding along the surface tension.
It uses many other forces and requires velocity from the boat.

Video Link! Hydroplaning.

Learn more about surface tension at…

Available Sheet: Properties of Water.
Note: This will be due at the end of Part III. Bring to class everyday.

Activity! High Specific heat.
Add one drop to the depression in the dish. Two drops to the second dish. Three drops to the third…etc Place in freezer for minutes Copyright © 2010 Ryan P. Murphy

Predict which ones will be frozen After 10-15 minutes?
Activity! High Specific heat. Add one drop to the depression in the dish. Two drops to the second dish. Three drops to the third…etc Place in freezer for minutes Predict which ones will be frozen After minutes? Copyright © 2010 Ryan P. Murphy

Please describe the water temperature in early May in a lake.

Please describe the water temperature in early May in a lake
Please describe the water temperature in early May in a lake. Still Chilly!

Please describe the water temperature in September in the same lake.

Please describe the water temperature in September in the same lake
Please describe the water temperature in September in the same lake. Warmer! Copyright © 2010 Ryan P. Murphy

Will this lake be frozen in November?
Please describe the water temperature in September in the same lake. Warmer! Will this lake be frozen in November? Copyright © 2010 Ryan P. Murphy

No, it takes a lot of energy to cool it down.

January 1st No, it takes a lot of energy to cool it down.

In late fall / early winter, the temperatures near the sea coast are usually higher because the oceans are still releasing stored energy from the summer.

In late fall / early winter, the temperatures near the sea coast are usually higher because the oceans are still releasing stored energy from the summer. Predictions?

The high specific heat of water means that a lake won’t freeze or heat up suddenly.

The high specific heat of water means that a lake won’t freeze or heat up suddenly.
This gives aquatic organisms a chance to adjust to temperature changes slowly.

shock your fish by dropping it into a cold tank. (Homeostasis)
The high specific heat of water means that a lake won’t freeze or heat up suddenly. This gives aquatic organisms a chance to adjust to temperature changes slowly. You don’t want to just shock your fish by dropping it into a cold tank. (Homeostasis)

shock your fish by dropping it into a cold tank. (Homeostasis)
The high specific heat of water means that a lake won’t freeze or heat up suddenly. This gives aquatic organisms a chance to adjust to temperature changes slowly. You don’t want to just shock your fish by dropping it into a cold tank. (Homeostasis) Ponds and rivers heat and cool slowly.

How long before you can put your hand in this water once removed from the stove?

How long before you can put your hand in this water once removed from the stove?
Let it cool down first.

It all depends on… Movement of air around pot. Shape of the pot.
Liquid that is boiling. Type of metal the pot is made from. Amount of water exposed to the air Air Pressure / Elevation Amount of water, drop vs. several gallons. Much more so this question can only be answered by conducting a study on that pot with that liquid.

High Specific Heat: Hydrogen bonds absorb heat when they break, and release heat when they form.

Many people rely on the high specific heat property of water to heat their home.

Many people rely on the high specific heat property of water to heat their home.
Water is warmed in the boiler and then piped throughout the house before returning.

It takes significant energy to change the state of water.
Solid  Liquid  Gas. Gas  Liquid  Solid. Copyright © 2010 Ryan P. Murphy

Water boils at 100 degrees Celsius.

How are the molecules behaving when water is in its gaseous form?

Answer! The molecules move very fast as a gas.

Available Sheet: Properties of Water.
Note: This will be due at the end of Part III. Bring to class everyday.

Activity! High Specific heat.
Add one drop to the depression in the dish. Two drops to the second dish. Three drops to the third…etc Place in freezer for 15 minutes Copyright © 2010 Ryan P. Murphy

Questions: High Specific Heat.
Predict which will be frozen and which won’t?

Predict which will be frozen and which won’t? The smaller amounts of water will freeze. The first to freeze will be the single drop, and the largest may not freeze.

How does this show waters high specific heat?

How does this show waters high specific heat? This shows high specific heat because it took more energy to freeze the larger amounts of water.

Which of the following pictures will freeze first, second, third, fourth, fifth, and last?
B C D E F Copyright © 2010 Ryan P. Murphy

Which of the following pictures will require the most energy to boil…1st, 2nd,3rd,4th,5th,6th
A C 1 E F D Copyright © 2010 Ryan P. Murphy

Warm and cold water global currents stabilize the temperature of the earth.

Warm water from the tropics flows north toward the ice caps.
This keeps the ice caps in the northern regions from creeping south. Copyright © 2010 Ryan P. Murphy

Cold water from the north flows south toward the tropics.
This keeps the tropics from becoming to warm. Copyright © 2010 Ryan P. Murphy

Cape Cod, Massachusetts.

Gulf Stream

From the Gulf of Maine Gulf Stream

Video Link! (Gulf Stream)

Without the ocean global conveyor of warm and cold currents,

Without the ocean global conveyor of warm and cold currents, the earth’s climate would become drastically different.

Without the ocean global conveyor of warm and cold currents, the earth’s climate would become drastically different. Learn more about water’s high specific heat at…

You can now complete this page.

What is so special about the water in this photograph?

On Earth, Water exists as a...
What is so special about the water in this photograph? On Earth, Water exists as a... Copyright © 2010 Ryan P. Murphy

Compare the importance of water commonly existing in all three states of matter.

Water commonly exists in all three states of matter
Compare the importance of water commonly existing in all three states of matter. Water commonly exists in all three states of matter

Water commonly exists in all three states of matter
Compare the importance of water commonly existing in all three states of matter. Water commonly exists in all three states of matter Water exists commonly in it’s solid state

Water exists commonly in it’s solid state
Compare the importance of water commonly existing in all three states of matter. Water exists commonly in it’s solid state

Compare the importance of water commonly existing in all three states of matter.

On the planet Mars, we can see that water is most abundant in it’s solid form of ice.

Planet that is believed to have no water at all

Mercury Closest Planet to the Sun

Does anyone know what the Hydrologic Cycle is? aka.. The Water Cycle.

B C A What do we already know? Explain yourselves with this template.

What do we already know? Explain yourselves with this template.
B C A Evaporation Copyright © 2010 Ryan P. Murphy

B Condensation C A Evaporation
What do we already know? Explain yourselves with this template. B Condensation C A Evaporation Copyright © 2010 Ryan P. Murphy

B Condensation C Precipitation A Evaporation
What do we already know? Explain yourselves with this template. B Condensation C Precipitation A Evaporation Copyright © 2010 Ryan P. Murphy

Which of the other terms are we unsure of..
Condensation Evaporation Precipitation Percolation Transpiration Sublimation Infiltration Ocean Storage Ground Water Storage Freshwater discharge Surface run-off Copyright © 2010 Ryan P. Murphy

We will review these terms Which of the other terms are we unsure of..
Condensation Evaporation Precipitation Percolation Transpiration Sublimation Infiltration Ocean Storage Ground Water Storage Freshwater discharge Surface run-off We will review these terms Copyright © 2010 Ryan P. Murphy

We will review these terms and learn some new terms
Which of the other terms are we unsure of.. Condensation Evaporation Precipitation Percolation Transpiration Sublimation Infiltration Ocean Storage Ground Water Storage Freshwater discharge Surface run-off We will review these terms and learn some new terms Copyright © 2010 Ryan P. Murphy

Summary

Summary Water is being continually created by many biophysicochemical processes. As such, water can be viewed as being constantly “refreshed” or “rejuvenated.”

The water in dinosaur pee is not the same water that we drink.
Summary Water is being continually created by many biophysicochemical processes. As such, water can be viewed as being constantly “refreshed” or “rejuvenated.” The water in dinosaur pee is not the same water that we drink. The H’s and O’s that make up H2O are the same ones present when the dinosaurs roamed the Earth.

The hydrologic cycle (Water Cycle):

The hydrologic cycle (Water Cycle): The continuous movement of water on,

The hydrologic cycle (Water Cycle): The continuous movement of water on, above,

Water Cycle Available Sheet

Add the terms

Step by step drawing of the water cycle.

Evaporation

Evaporation liquid to gas

Condensation Evaporation liquid to gas

Condensation gas to liquid Evaporation liquid to gas

Precipitation Condensation gas to liquid Evaporation liquid to gas

Precipitation Condensation Solid / Liquid gas to liquid Evaporation liquid to gas

Precipitation Condensation Solid / Liquid gas to liquid Evaporation liquid to gas Percolation

Precipitation Condensation Solid / Liquid gas to liquid Evaporation liquid to gas Percolation Groundwater

Precipitation Condensation Solid / Liquid gas to liquid Evaporation liquid to gas Percolation Infiltration Groundwater

Precipitation Condensation Solid / Liquid gas to liquid Evaporation liquid to gas Percolation Infiltration Groundwater Aquifer Recharge

Precipitation Condensation Solid / Liquid gas to liquid Evaporation liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Precipitation Condensation Solid / Liquid gas to liquid Evaporation Surface Run-off liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Precipitation Condensation Solid / Liquid gas to liquid Transpiration Evaporation Surface Run-off liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Which two have been switched?

Condensation Precipitation Solid / Liquid gas to liquid Evapotranspiration Evaporation Surface Run-off liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Condensation Precipitation Solid / Liquid gas to liquid Transpiration Evaporation Surface Run-off liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Precipitation Condensation Solid / Liquid gas to liquid Transpiration Percolation Evaporation liquid to gas Surface Run-off Infiltration Groundwater Well Aquifer Recharge

Precipitation Condensation Solid / Liquid liquid to gas Transpiration Evaporation Surface Run-off gas to liquid Percolation Infiltration Groundwater Well Aquifer Recharge

Condensation Transpiration Solid / Liquid gas to liquid Precipitation Evaporation Surface Run-off liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Condensation Precipitation Solid / Liquid gas to liquid Transpiration Evaporation Surface Run-off liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

Precipitation Condensation Solid / Liquid gas to liquid Transpiration Groundwater Evaporation liquid to gas Percolation Infiltration Surface Run-off Well Aquifer Recharge

Precipitation Condensation Solid / Liquid gas to liquid Transpiration Surface Run-off Evaporation liquid to gas Percolation Infiltration Groundwater Well Aquifer Recharge

What terms was missing that we learned?
Answers1-8 The hydrologic cycle. Condensation Transpiration Precipitation Surface Runoff Evaporation Percolation 7. What terms was missing that we learned? Ground Water Copyright © 2010 Ryan P. Murphy

Answers1-8 The hydrologic cycle. Condensation Transpiration Precipitation Surface Run-off Evaporation Percolation 7. What terms was missing that we learned? Ground Water Copyright © 2010 Ryan P. Murphy

The Water Cycle. Learn more at…

Activity! Answer with your feet.
B C D

Teacher labels corners.
Activity! Answer with your feet. A B Teacher labels corners. C D

Teacher labels corners.
Activity! Answer with your feet. A B Teacher labels corners. Students wander (make a few wrong turns) to the correct corner. C D

A B If you get a question wrong you have to sit. C D
Activity! Answer with your feet. A B If you get a question wrong you have to sit. C D

A B If you get a question wrong you have to sit. If the last person
Activity! Answer with your feet. A B If you get a question wrong you have to sit. If the last person gets out then your back in. C D

A B C D A water molecule is made up of…
A.) 2 molecules of Oxygen, one of Hydrogen B.) 2 atoms of Oxygen, one of Hydrogen C.) One atom of Oxygen, two of Hydrogen D.) One Nitrogen atom, and three Helium C D

A B This is the term for a molecule that has a positive charge on one end with a negative charge on the other. A.) Heavy B.) Non-Polar C.) Unstable D.) Polar C D

A B This is the term for when molecules tend to attach to themselves. A.) adhesion B.) gluey C.) cohesion D.) specific heat C D

A B This is the term for when molecules tend to attach to other molecules. A.) adhesion B.) gluey C.) surface tension D.) specific heat C D

A B C D This is the term for when water climbs up plants by adhesion.
A.) cohesion B.) fluid build-up C.) capillary action D.) tension coefficient C D

“Don’t fall for the smart sounding one.”
A B This is the term for when water climbs up plants by adhesion. A.) cohesion B.) fluid build-up C.) capillary action D.) tension coefficient C D “Don’t fall for the smart sounding one.”

A B C D This is the term for when water climbs up plants by adhesion.
A.) cohesion B.) fluid build-up C.) capillary action D.) tension coefficient C D

A B This is the term for when Hydrogen bonds absorb heat when they break, and release heat when they form. A.) High Specific Heat B.) Surface Tension C.) Cohesion D.) Capillary Action C D

A B C D Water in it’s pure state has a ________ pH A.) Highly Acidic
B.) High Basic C.) All of the Above D.) Neutral C D

A B C D Water in it’s pure state has a ________ pH A.) Highly Acidic
B.) High Basic C.) All of the Above D.) Neutral C D Neutral

A B C D Water is called the __________ solvent A.) Occasional
B.) Frequent C.) Universal D.) Targeted C D

A B C D Water is called the __________ solvent A.) Occasional
B.) Frequent C.) Universal D.) Targeted C D Universal

Last Question

A B C D This is picture best represents… A.) Capillary Action
B.) Surface Tension C.) High Specific Heat D.) Lake Turnover C D

Video Link! Properties of Water
Good Review before quiz.

Quiz! Name the Property of Water or term.
Three States of Matter Surface Tension Adhesion Capillary Action Meniscus Cohesion High Specific Heat Universal Solvent Lower Density of Ice Water has neutral pH Copyright © 2010 Ryan P. Murphy

Bonus: Name this Kevin Costner movie about a world that is covered in water?

Quiz! Name the Property of Water or term.
Three States of Matter Surface Tension Adhesion Capillary Action Meniscus Cohesion High Specific Heat Universal Solvent Lower Density of Ice Water has neutral pH Copyright © 2010 Ryan P. Murphy

1 Cohesion

2 Universal Solvent

3 Adhesion

4 Lower Density of Ice

5 High Specific Heat

6 Adhesion

6 Meniscus Adhesion

7 Adhesion

7 Adhesion Capillary Action

8 Neutral pH

all three states of matter.
9 Water exists in all three states of matter.

9 Water exists in all three states of matter. Solid

9 Water exists in all three states of matter. Solid Liquid

9 Water exists in all three states of matter. Solid Gas Liquid

10 Surface Tension

Bonus: Name this Kevin Costner movie about a world that is covered in water?

Video Link! Water Crash Course.
Advanced and Optional Preview for language.

You can also complete the crossword puzzle to the water molecule unit.

Water Molecule Unit Part 3

Water Molecule Unit Part 3.

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